125901789 has 24 divisors (see below), whose sum is σ = 188065440. Its totient is φ = 74797632.

The previous prime is 125901781. The next prime is 125901791. The reversal of 125901789 is 987109521.

It is not a de Polignac number, because 125901789 - 2³ = 125901781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125901789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125901781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10422 + ... + 18984.

It is an arithmetic number, because the mean of its divisors is an integer number (7836060).

Almost surely, 2^125901789 is an apocalyptic number.

It is an amenable number.

125901789 is a deficient number, since it is larger than the sum of its proper divisors (62163651).

125901789 is a wasteful number, since it uses less digits than its factorization.

125901789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8621 (or 8608 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 125901789 is about 11220.5966418903. The cubic root of 125901789 is about 501.1995054057.

The spelling of 125901789 in words is "one hundred twenty-five million, nine hundred one thousand, seven hundred eighty-nine".